lol i'll be an♥♥♥♥♥and tell you that GTA V is definitelly not for a 14 year old kid :P but who listens to that anyway? But yeah I'd suggest GTA V duh, but you can't compare the two, morally speaking I'd recommend this, assuming your newphew is too young but who gives a crap if he's underage that game is a master piece.

Definitely GTA V. There are literally thousands of more extremely fun features in GTA V than this. There is also a mature language and censor blood and nudity feature in GTA V so that game is a much, MUCH better choice for your nephew.